次要電路 的英文怎麼說

中文拼音 [cìyāodiànlù]
次要電路 英文
secondary circuit
  • 次 : Ⅰ名詞1 （次序; 等第） order; sequence 2 [書面語] （出外遠行時停留的處所） stopping place on a jou...
  • 要 : 要動詞1. （求） demand; ask2. （強迫; 威脅） force; coerceⅡ名詞（姓氏） a surname
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 路 : 1 （道路） road; way; path 2 （路程） journey; distance 3 （途徑; 門路） way; means 4 （條理） se...
  • 次要 : less important; secondary; subordinate; minor; next in importance
  • 電路 : [訊] circuit （ckt）; electric circuit; electrocircuit電路板 circuit board; 電路保持 guard of a c...
  1. The theory of wilkinson power combiner and ratrace coupler is analyzed by using the odd - even mode method in this thesis. on the basis of the theoretical analysis, we designed and tested the wilkinson power divider, the modified wilkinson power divider and ratrace coupler, good agreement is observed. in addition we propose a power combiner based on a waveguide - to - microstrip transition using antipodal finlines. this structure united the two functions of transition and equal power division, it can not only be used in the circuit power combiner but also be used in spatial power combiner

    另外提出一種基於鰭線波導微帶過渡功分器，該結構將過渡與功分兩種功能完全結合，不但可以用於電路合成式功率合成，也可用於空間功率合成中。對功率合成器，其主要指標是輸出功率和效率，其中提高輸出功率和效率的一個方法是在輸出端抑制諧波，主要是對二次諧波的抑制。
  2. In this paper, the design of a practical sort of high performance biquadrates elliptic active band - pass filters is emphasized, and then the design techniques and how to calculate the resistors and capacitances, how to make computer simulation and tolerance analysis with computer are described in detail

    摘要本文我們重點介紹了一種實用的雙二次型高性能橢圓函數有源帶通濾波器的設計方法，詳細介紹了該濾波器的設計步驟及阻容元件的參數計算，並對設計出的電路用計算機進行模擬模擬和容差分析。
  3. This paper refers to several creation in compatibility with large volume of fed display and conversion of different video signal. it firstly used special central chip al300, designed correlative circuits, successfully developed vga full - color fed console system, compatible with resolution 1280 1024, achieved functions such as multi - video signal conversion and interleaving, met vga ’ s resolution of fed. it firstly designed and fabricated vga interface and separated video interface - - s - video, converting several video signals to 24 bits full - colored digital image signal in fed driving system, achieved separation of luminance signal and chromatism signal, enhanced the bandwidth of luminance signal

    首次採用平板顯示專用控制晶元al300 ，設計並製作了相關配套電路，支持的最高解析度是1280 1024 ，實現解隔行和多種視頻格式轉換的功能，滿足了fed顯示屏對vga解析度的要求。首次在基於fpga的vga級彩色fed控制系統中設計並製作了vga介面和分離電視信號s - video介面，可以將多種視頻信號變換為fed驅動系統可用的24位彩色數字圖像信號，實現亮度信號和色差信號的分離，提高了亮度信號的帶寬。
  4. Therefore, in december 2000 the bureau of transportation of taipei city government completed a feasibility study for an lrt system in the taipei shin - yi district. this study recommended the adoption of an lrt system with a standard track gauge, power supply from overhead wires, two or three cars per train, a length of 90m for platforms, a certificate system for fare payment, consideration of the possibility of using electronic sensor ticketing systems, type b right - of - way for at grade sections, and signaling control for passing priority at the intersections. the study also proposed an initial lrt line of 9. 6 kilometers in length with 9 stations

    現代化輕軌運輸系統之運輸效能已較電車系統大幅提升，以一般採用b型路權為主，少部分a與c型路權之系統而言，每小時單向運能達到5 ， 000至15 ， 000人次，介乎高運量捷運與公車系統之間，適合擔負都會地區市郊與市中心區的聯絡路線、市中心區集散路線、鐵路與捷運系統接駁路線、都市周邊環狀線、特定區間（新市鎮）聯絡線、都會區次要運輸走廊運輸主軸等服務類型。
  5. The mutual inductor of electric current and voltage mutual inductor play an important role in relay protection. prevent from ct differential to protect and miss movement an important subject that the generatrix is protected on the saturation, put forward two electric current pass zero hour linear to spread person who become put into differential to protect in ct in recent years, avoid ct saturation district, can judge the bus bar trouble correctly

    但是在母線區外發生短路故障（特別是故障電流含有大量非周期分量）時， ct會出現飽和現象， ct飽和后，不能正確地傳變一次側電流，從而使二次電流發生嚴重畸變，產生很大的差電流，這樣就容易引起誤動作。防止ct飽和時差動保護誤動作一直是母線保護的一個重要課題，近年來提出的在ct二次電流過零時的線性傳變區投入差動保護，避開ct飽和區，能對母線故障做出正確判斷。
  6. Although many achievements have been acquired in oled structure material, production technology, drive methods, oled technology is just at the beginning, oled has given an equal chance for every company and country, and it is very important for our country to develop displaying technology of our own. the research direction of oled is managing to improve the device lifetime, at the same time found a perfect production technological flow and the global standard production mode. it is still a arduous mission that we want to live up to a batch production of oled displays in the future some years. active matrix organic light emitting diode ( am - oled ) adopts a circuit structure based on matrix addressing, and its driving circuit includes pixel driving circuit and peripheral driving circuit

    在文中，首先，分析和研究了有源oled的像素驅動電路，闡述了amoled顯示屏及其周邊驅動電路的結構和原理;其次，提出了qvga解析度的有源oled顯示屏列電極數據引線的分塊（ block ）方法，確定屏上驅動電路所需要的控制信號之間時序關系和幅值要求;最後，以fpga控制器的設計為核心，對外圍控制ic進行了具體設計，建立控制器電路模塊模型和演算法流程，通過quartus軟體對其內部的各個電路模塊進行綜合設計和模擬，得到了正確的模擬波形，完成了解析度為qvga （ 320 3 240 ）的amoled專用驅動電路的設計。
  7. Then, after the circuit is placed wholly into margin within the case of gyroscope, electromagnetic interference which affects circuit itself is analyzed, designing for board level electromagnetic compatibility is discussed, approaches with which reducing electromagnetic interference are bring forward, at same time, the request of every circuit routing is required, and a part of circuit layout is improved

    其次，分析了電路安裝在陀螺殼體內后的電磁干擾對電路本身的影響，探討了電路板級的電磁兼容性設計，提出了減小電磁干擾的途徑，在此基礎上提出了電路各模塊的布線要求，並改進了部分電路布局。
  8. This paper first begin with the connotation of virtual instrument technology, study and discuss the criterion and the working theory of usb deeply. on the principle of usb1. 1criterion, using usb interface chip usbn9604 and low consumption mirochip c8051f231, we designed the available interface of usb bus and its controlling software, turn the communicating function based usb bus between computer and testing device. second based on the developed interface of usb bus, using microchip pic16c62 and a mount of relays, we designed the multiswitching scanner and its controlling software to complete the funtion of accesses swithing in testing system. third calling the api function inside the windows using vb programming language, communicat with the impelling program of selected hid, achieve the function of testing instrument with usb interface, complete the development of upside software faced testing. at last, based on the deep studying of pcb testing method, used the developed multiswithing scanner and software faced testing, combinated with necessary testing instrument, we constructed the pcb testing system and analized the testing result simply

    論文首先從虛擬儀器的技術內涵出發，深入研究和討論了通用串列總線usb規范及工作原理，並依據usb1 . 1規范，採用usb介面晶元usbn9604和低功耗微處理器c8051f231設計開發了通用的usb總線介面及其控制固件，實現了通用計算機與測試設備之間基於usb總線的通信功能；其次，在所開發的usb總線介面的基礎上，使用微處理器pic16c62和多路繼電器開關，設計開發出實現測試系統中測試通道切換功能的多路通道掃描器及其控制固件；再次，採用vb語言編程，調用windows內部api函數，與選定hid類驅動程序進行通信，實現usb總線介面測試儀器功能，完成面向測試的上層軟體開發；最後，在深入研究印刷電路板測試方法的基礎上，利用已開發的多路通道掃描器和面向測試軟體，結合必要測試儀器組建印刷電路板測試系統，並對測試結果進行了簡要的誤差分析。
  9. Equivalent circuit method is usually used before. this method has apparent defect, that is, the ignorance of higher order mode effect, which can greatly affect the computational accuracy. in cases that require high accuracy, this method is unusable

    以前一般採用等效電路法分析和設計脊波導元器件；這種方法的缺點比較明顯，那就是對高次模的影響不加考慮，使得計算精度大受影響，在較高要求的場合甚至完全不可用。
  10. The carrier wave is modulated directly by the baseband signal at several frequency point in l band and s band. firstly, this paper clarifies the theory of i / q modulation, elaborates evm and acpl, and analyzes the effect of amplitude and phase unbalance and dc offset on evm. secondly we review the basic principle of phase locked loop and it ’ s composing parts, including the basic conception and design method of pll frequency synthesizer, especially introduce the charge pump pll frequency synthesizer in detail

    首先，在闡述i / q正交調制基本原理的基礎上，通過對誤差矢量和鄰近通道功率泄漏的詳細分析，定性、定量地討論了各種非理想電路因素（如相位不平衡、幅度不平衡、直流偏差等）對調制器性能的影響;其次，介紹了鎖相環的工作原理和基本組成部分，包括鎖相環的設計和環路濾波器的設計，特別詳述了電荷泵鎖相頻率源;第三，介紹了採用直接調制技術模擬衛星信號的射頻前端的設計;最後，對整個直接射頻調制系統進行測試，結果基本上達到了課題要求。
  11. The third, the whole circuit of digital cmos image sensor is presented. the circuits of pixel array, clock signal generator and sam have been improved on the base of simulation

    再次，我們對整個cmos數字圖像傳感器進行了電路設計，主要包括：時鐘信號發生器，順序移位寄存器和像素陣列。
  12. The virtual circuit management module is consists of three sub - modules which are virtual - circuit - create sub - module, virtual - circuit - hold sub - module, virtual - circuit - free sub - module. we create a virtual circuit between each other before they begin to communicate, then we hold this virtual circuit during the communication process, finally, free this virtual circuit after finish the communication. i coded this program with c under linux kernel and use the kgdb to debug the module

    主機虛電路管理模塊主要由建立虛電路，維護虛電路和撤銷虛電路三個子模塊組成，建立虛電路模塊採用了兩次握手機制，在雙方進行通信前建立端到端的虛電路;維護虛電路模塊負責在通信過程中維護虛電路;撤銷虛電路模塊採用了改良的六次握手協議，在通信結束後撤銷虛電路。
  13. According to the request of this subject, we have developed the system hardware and software for the slave device and the inspection software running on the pc. in this paper all of the followings is illustrated detailedly, such as the research on the principles of measurement and its realization, three means of water - level measurement that are separately based on photo electricity coder, pressure sensor and potentiometer ; selection of the microchip, we choose an advanced integrated soc ( system on chip ) microchip c8051f021 as the main controller ; realization of signal sampling, processing and its conversion in the mcu ; application of high precision 16 bits adc cmos chip - - ad7705 in our system, designing its interface with the microchip and relevant program ; using a trickle charge timekeeping chip ds1302 in the system which can provide time norm and designing of its i / o interface and program ; additionally, a 4 ~ 20ma current output channel to provide system check - up using ad421. in the system, ad421, ad7705 and the microchip compose spi bus ; to communicate with the master pc, here we use two ways which are separately rs232 and rs485 ; moreover, there are alarm unit, keyboard unit, power supply inspection unit and voltage norm providing unit in the system

    針對研製任務的要求，課題期間研製了下位機系統硬體和軟體，開發了上位機監控軟體，其中所作的具體工作包括：測量原理的研究和在系統中的實現，在本次設計中用三種方法來進行水位測量，分別是旋轉編碼器法、液位壓力傳感器法和可變電阻器法；主控晶元的選擇，我們選用了高集成度的混合信號系統級晶元c8051f021 ；實現了信號的採集和處理，包括信號的轉換和在單片機內的運算；高集成度16位模數轉換晶元ad7705在系統中的應用，我們完成了它與單片機的介面設計及程序編制任務；精確時鐘晶元ds1302在系統中的應用，在此，我們實現了用單片機的i o口與ds1302的連接和在軟體中對時序的模擬，該晶元的應用給整臺儀器提供了時間基準，方便了儀器的使用；另外，針對研製任務的要求，還給系統加上了一路4 20ma模擬信號電流環的輸出電路來提供系統監測，該部分的實現是通過採用ad421晶元來完成的，本設計中完成了ad421與單片機的spi介面任務，協調了它與ad7705晶元和單片機共同構成的spi總線系統的關系，並完成了程序設計；與上位機的通信介面設計，該部分通過兩種方法實現： rs232通信方式和rs485通信方式；系統設計方面還包括報警電路設計、操作鍵盤設計、電源監控電路設計、電壓基準電路的設計。
  14. The history and present situation of electric measuring instrument and features of intelligent meters are introduced in this paper. a brand - new scheme of intelligent electric parameter meter is proposed by the author after combining the features of intelligent meters and practical demand for electric measuring in 300mw generator units. general design, realization of hardware circuit comparison and analysis of errors of different algorisms are discussed in detail

    本論文介紹了電測儀表的發展歷史與現狀，以及新興智能儀表的特點；結合智能化儀表特點和300mw發電機組電參數測試的實際需要，首次提出了一種智能型發電機組電參數綜合測試儀的研究方案；詳細敘述了該智能型綜合測試儀的總體設計，硬體電路實現，各種演算法的比較的誤差分析；以及軟體框圖設計，針對影響測量精度的因素進行了分析，並制定了改進措施。
  15. A heat - sensitive circuit could take readings once a minute and trigger a camera or other power - hungry sensors on the mote to start recording whenever the burrow warms rapidly

    我們可以讓熱感應電路每隔一分鐘讀取一次讀數，只要洞穴內快速變暖，就啟動塵粒內的照相機或其他較為耗電的感測器，開始進行記錄。
  16. Socket function mainly realizes setting up and initializing service unit socket, initializing service unit and service unit serial and so on. bind funcion primarily binds local address and port for the socket. listen function is to evaluate the max length of server ’ s listening queue. connect function and accept function set aside rate ahead, infrom user ’ s request of establishing virtual circuit to suna, cooperate with suna to establish the connection between client and server, return the result. we make use of three handshake with data protocol and virtual circuit mode, in this way, when we translate data, we can look up communication course according to virtual circuit number, at the same time, there aren ’ t source ip address and port, end ip address and port in the head of data package, the speed of translating data advances in a certain extent. send function and recv function is to send data collaborating with suna, and copy data from the receiving queue of socket to user ’ s buffer. close function cooperate

    Socket （ ）函數實現創建、初始化服務元套接字，初始化服務元及服務元序列等。 bind （ ）函數為套接字綁定本地地址和埠號。 connect （ ）和accept （ ）函數主要是根據用戶要求預留帶寬，將用戶的建立虛電路請求轉達給服務元網路體系，協作服務元網路體系採用捎帶數據的三次握手協議建立虛電路，並告訴用戶處理結果，一方面，捎帶數據的三次握手協議在一定程度上可提高數據傳輸速度;另一方面，採用虛電路方式，使得數據通信可直接根據虛電路號查找相應的通信進程，而且數據包的包頭中省去了源ip地址、埠號和目的ip地址、埠號，提高了數據傳輸速率。
  17. Firstly, unlike other technologies that verify security at high - level protocol, verifying security at ip level is transparent to applications and end - users that don " t have to be modified even if there is any change at ip level. secondly, another conspicuous advantage is that it can be used on any machine that uses ip protocol to communicate. no matter ipsec runs on routers, on firewall machines, on various application servers, and on end - user desktop or laptop machines, it can verify security of network transmission

    首先，在通信協議底層對數據傳輸提供安全保護與其它在高層協議中提供安全保護的技術不同，在ip層提供安全性保護對應用程序和終端用戶都是透明的，不需要應用程序、其它通信層次和網路部件做任何改動；其次， ipsec的另一個顯著特點是它幾乎可以運行在使用ip協議進行通信的任何機器上，不論是運行在路由器、防火墻主機、各種各樣的應用服務器上，還是運行在終端用戶的個人計算機或筆記本電腦上，它都能提供一定的安全保障；最後，利用ipsec實現虛擬專用網是目前通過internet實現企業內部網的主要解決方案之一。
  18. From a transportation point of view, a modernized light rail rapid transit system is more efficient than streetcars. most lrt systems adopt type b right - of - way regulations. few have used types a or c. their capacity stands between heavy rail rapid transit systems and bus systems, in that they can carry between 5, 000 and 15, 000 passengers per hour in a single direction

    現代化輕軌運輸系統之運輸效能已較電車系統大幅提升，以一般採用b型路權為主，少部分a與c型路權之系統而言，每小時單向運能達到5 ， 000至15 ， 000人次，介乎高運量捷運與公車系統之間，適合擔負都會地區市郊與市中心區的聯絡路線、市中心區集散路線、鐵路與捷運系統接駁路線、都市周邊環狀線、特定區間（新市鎮）聯絡線、都會區次要運輸走廊運輸主軸等服務類型。
  19. Then according to the emphasis of the design, went deeply into the theory of pll frequency synthesizers widely used, described pll ’ s working principle, structure and several types in detail, and made research and analysis of pll frequency synthesizers ’ phase noise, including the effect of the active loop filter on the phase noise, and give some methods to make improvement as well, such as changing loop filter form, reducing divide number, and increase phase detector frequency, etc. then paper introduced the principle character and phase noise analysis of direct digital frequency synthesizer ( dds ) and injection phase lock circuit, which are also important circuits in the design

    論文首先對幾十年頻率合成器的發展進行概述，而後針對本次設計的重點，對應用較為廣泛的鎖相頻率合成理論進行了深入的探討，詳細介紹了鎖相環的工作原理、組成結構和鎖相類型，並對鎖相頻率合成器的相噪特性進行了研究分析，包括有源環路濾波器對于相噪的影響，提出了改善相位噪聲的幾點措施:改善環路形式、降低分頻數、增大鑒相頻率等。接著介紹了直接數字頻率合成器（ dds ）和注入鎖相電路的原理特點以及相噪分析，它們也是本次設計的重要電路。
  20. The author pays more attention to the analysis and design on the following sub - circuits : oscillator, comparator, hysteresis comparator, chip enable, etc. on completing the principle analysis and circuit design, the sub - circuits and whole chip circuit are verified with the eda tools hspice

    其次在電路設計中，作者基於升壓型dc / dc變換器和離散脈沖頻率調制方式的基本原理並根據電路功能的需要，進行了控制電路的總體結構設計和子電路模塊設計。
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